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Old 02-21-2015, 03:23 AM   #5
Amir Ghadiri
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Quote:
Originally Posted by stugray View Post
14.7 PSI (atmospheric pressure at your altitude) * 12.5 (86 compression ratio ) = 183.75 PSI.
So that is the number that you should never be able to exceed with "static" CR (cranking it).
At full speed, the "dynamic CR" is different.

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